Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

Home Enter the Museum About Us Contact Us

FREE Subscription to:
Hearing Loss Help
The premier e-zine for people with hearing loss

Your email address
will never be
rented, traded or sold!

Your First Name:
Your E-mail:
Search this site:

 Results per
 page

 all words
 any words


Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Vacuum Tube Hearing Aids: 1921-1953

Acousticon A-100 (Imperial) Vacuum Tube Hearing Aid

The Acousticon A-100 (Imperial) hearing aid was produced by Dictograph Products, Inc. of New York in 1947.

It featured a case of gold anodized aluminum with light brown enamel on the left two-thirds of the front. The hearing aid measured 4¾” by 2⅜” by ⅞”.

Click picture for larger view

 

Back Next

 
The Acousticon A-100 featured the same controls as the A-90 and A-90M with the volume control/on-off switch at the top left corner, and the microphone on the front behind the slightly-recessed grill/logo at the top right.


Click picture for larger view

 

Left side view of the Acousticon A-100 showing the 4 position tone control. The serial number (6A500) is to the right of the tone control.

Note the clip to hold the hearing aid in place on the clothing (bottom left).

 

Click picture for larger view

 

The Acousticon A-100 was powered by a 1.4 volt Mallory RM-4 mercury "A" battery (or the No. 4 battery) and a 22½ volt Eveready 412E "B" battery.

 

Click picture for larger view

 
An interesting feature of the Acousticon A-100 was that the "A" battery compartment was configured so that an Eveready 1015E "A" battery (AA size) could be substituted in place of the Mallory RM-4 mercury battery.

 

Click picture for larger view

 
Another feature of the A-100 was the capability to attach the Acousticon Radion radio tuner to the right side of the hearing aid, thus turning the hearing aid into a personal AM radio for the user. Note the two holes on the right side for the pins of the Radion to attach/connect to.

Click picture for larger view

 

The Acousticon A-100 with the Radion attached to the right side of the hearing aid. Click here for more information on the Acousticon Radion.

 


 

Click picture for larger view

 

(If a larger picture doesn't appear, you may have to turn your pop-up blocker off)